Insufficient boundary checks for DIO and DAO messages in RPL-Lite in Contiki-NG

{
  "id": "79bdc58918b5bc3379faf24f40f4fe77019adb45074e6d5b499bec7f3517bdb5",
  "url": "https://osv.dev/vulnerability/CVE-2023-50927",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Insufficient boundary checks for DIO and DAO messages in RPL-Lite in Contiki-NG",
    "summary": "Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. Users unable to upgrade should manually apply the code changes in PR #2484.",
    "evidence": "osv:CVE-2023-50927",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-50927",
      "aliases": [
        "CVE-2023-50927",
        "GHSA-9423-rgj4-wjfw"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/contiki-ng/contiki-ng",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c20b12cd2db707d6c07918f8b26cfeb52cf298ca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.9"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "release/v4.8",
            "release/v4.7",
            "release/v4.6",
            "release/v4.5",
            "release/v4.4",
            "release/v4.3",
            "release/v4.2",
            "release/v4.1",
            "release/v4.0",
            "develop/v4.0",
            "fork",
            "develop/v3.x-fork",
            "old/v2.6",
            "2.6-rc0",
            "2.6",
            "2.5-release",
            "old/v2.4",
            "2.4",
            "old/v2.3",
            "2.3",
            "old/v2.2.3",
            "2.2.3",
            "old/v2.2.2",
            "2.2.2",
            "old/v2.2.1",
            "2.2.1",
            "old/v2.2",
            "2.2",
            "old/v2.1",
            "2.1",
            "old/v2.0",
            "2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-50927.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.198644617Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50927.json",
        "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9423-rgj4-wjfw",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-50927",
        "https://github.com/contiki-ng/contiki-ng/pull/2484"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50927.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-50927",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517389,
  "published_at": "2024-02-14T19:22:05.243+00:00"
}